Home / 1,330,485.40-1,835,548.86-820,302.04

Finding the Fourth Proportional to 1,330,485.40, 1,835,548.86 and 820,302.04

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Solution

The fourth proportional to 1,330,485.40, 1,835,548.86 and 820,302.04 is: 1,131,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,485.40 : 1,835,548.86 = 820,302.04 : x
  2. Step 2: Convert to fraction form
    1,330,485.40/1,835,548.86 = 820,302.04/x
  3. Step 3: Cross multiply
    1,330,485.40x = 1,835,548.86 × 820,302.04
  4. Step 4: Simplify right side
    1,330,485.40x = 1,505,704,474,377.67
  5. Step 5: Solve for x
    x = 1,505,704,474,377.67/1,330,485.40
  6. Step 6: Final answer
    x = 1,131,695.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.